Dualism of humanity and the human nature

Humanity and human beings are not only dualistic but monistic.They are different and interrelated.Humanity is a character which is different from animals and a sum of other characters.It includes two aspects-the intrinsic character and other characters.The nature of human being is intrinsic reason why human beings are human beings.They are different concepts.Starting with dualism of humanity and human nature and refering to the unity and opposite of Marxis philosophical system it is of great significance for us to understand the construction of a harmonious society with the human-oriented idea.